Energetics vs PHY
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Energetics
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Ever wonder how much food fuel your critters need per day? This app provides a range of science-based target values that meet basal metabolic requirements through different activity levels - depending on species, food habits and stage of life - in an easy-to-navigate format. Great for checking you're not under or overfeeding amounts to your domestic furbabies, exotic pets, livestock or wildlife in your managed feeding programs. Contains reptile, bird, and mammal examples. 100% compatible with Zootrion 2020 energy requirement calculations.
PHY
Access your scan reports and personalized movement plans on the go. Watch exercise demonstrations and track your daily routine progress.
- Access scan reports
- View movement plans
- Exercise video demonstrations
- Track daily routine progress
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The Phy app gives you mobile access to your Phy scan reports and movement plans. Watch videos of how to perform each exercise and then use the app to track your progress as you complete your daily routines. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: PHY at Free against Energetics's $9.99. PHY also leads on update cadence (weekly vs every 25 months). Energetics's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
PHY is free to download; Energetics costs $9.99 up front. PHY sells 2 in-app purchases, starting at $14.99 per month. Energetics asks for nothing beyond the download.
Energetics ships an update every 25 months, PHY weekly. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.
| Parameter | Energetics | PHY |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | — | 4.7 (30 ratings) — better |
| Positive reviews | — | 92.3% of reviews |
| Number of ratings | — | 30 — better |
| Update frequency | Every 25 months | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 23 MB | 114 MB |
| Age rating | 4+ | 4+ |
| Developer | Chris HALFORD | Phyxd, Inc. |
In-app purchases
Energetics
No in-app purchases
PHY
- Phy Premium Monthly3 Days trial$14.991 Month
- Premium Yearly7 Days trial$149.991 Year
